1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <queue>
11
12// priority_queue& operator=(const priority_queue&) = default;
13
14#include <queue>
15#include <cassert>
16#include <functional>
17
18template <class C>
19C
20make(int n)
21{
22    C c;
23    for (int i = 0; i < n; ++i)
24        c.push_back(i);
25    return c;
26}
27
28int main()
29{
30    std::vector<int> v = make<std::vector<int> >(5);
31    std::priority_queue<int, std::vector<int>, std::greater<int> > qo(std::greater<int>(), v);
32    std::priority_queue<int, std::vector<int>, std::greater<int> > q;
33    q = qo;
34    assert(q.size() == 5);
35    assert(q.top() == 0);
36}
37